E-liquid bottle and electronic cigarette

ABSTRACT

The present disclosure provides an e-liquid bottle engageable with an electronic cigarette. The e-liquid bottle includes a main body ( 11 ), a cover ( 12 ), and a control switch ( 14 ); the cover ( 12 ) forms at least one liquid outlet ( 121 ); the control switch ( 14 ) is arranged in the cover ( 12 ). The electronic cigarette includes a cartridge ( 21 ) and a liquid injection device ( 23 ); the cartridge ( 21 ) forms a liquid reservoir (A), and one end of the cartridge ( 21 ) comprises an end wall ( 223 ) and a second operation portion ( 222 ) extending axially outwards from the end wall ( 223 ); the end wall ( 223 ) forms one liquid injection opening ( 2231 ), the second operation portion ( 222 ) corresponds to the control switch ( 14 ); the liquid injection device ( 23 ) is arranged on the end of the cartridge ( 21 ) and forms a liquid injection channel, and a first liquid inlet ( 2321 ) is formed in the liquid injection channel.

TECHNICAL FIELD

The present disclosure relates to substitutes for tobacco cigarettes,and more particularly, to an e-liquid bottle and an electroniccigarette.

BACKGROUND

At present, electronic cigarettes, also known as virtual cigarettes orelectronic atomizers are often used as substitutes for tobaccocigarettes. Electronic cigarettes look and smell like tobaccocigarettes, but is free of harmful gradients like tar and suspendedparticles.

An electronic cigarette typically includes a liquid reservoir, anatomizer arranged at one end of the liquid reservoir, and a mouthpiecearranged at the other end of the liquid reservoir. When e-liquid in theliquid reservoir is used up, the e-liquid is injected into the liquidreservoir after the mouthpiece is opened. The structure of themouthpiece is easy to remove, and children may easily open themouthpiece to contact and further drink the e-liquid by mistake.

In addition, it may be easy for children to open the present e-liquidbottle and contact the e-liquid.

Technical Problem

The technical problem solved by the present disclosure is to provide animproved e-liquid bottle and an electronic cigarette.

SUMMARY OF THE DISCLOSURE

The present disclosure provides an e-liquid bottle. The e-liquid bottleincludes a main body, a cover, and a control switch; the cover formingat least one liquid outlet; the control switch being arranged in thecover for controlling opening and closing of the liquid outlet; theliquid outlet being opened when the control switch is pressed inwardsand being sealed when the control switch is released.

In an embodiment, the control switch includes a button switch, a liquidstopper, and a first restoring member; the button switch is axiallymovably arranged on the cover; the liquid stopper is located on an innerside of the cover and is connected to the button switch and seals aninner end of the liquid outlet; the first restoring member provides aforce such that the button switch restores to its original state and theliquid stopper seals the liquid outlet.

In an embodiment, the liquid stopper is a gasket, the control switchfurther includes a supporting member connected to an inner end of thebutton switch, and the supporting member includes a supporting board onwhich the liquid stopper is mounted.

In an embodiment, the gasket and the supporting board are annular, thesupporting board defines a fixing hole in which the liquid stopper ismounted, and a fixing column being inserted into the fixing hole isarranged on the gasket.

In an embodiment, the e-liquid bottle includes a first operation portionfor pressing a liquid injection device of an electronic cigarette suchthat the liquid injection device can inject e-liquid to the electroniccigarette.

In an embodiment, the first operation portion is the cover.

In an embodiment, the e-liquid bottle further includes a liquid-out tubearranged inside the liquid outlet and extending outwards from the liquidoutlet.

The present disclosure further provides an electronic cigaretteengageable with the above e-liquid bottle; the electronic cigaretteincludes a cartridge and a liquid injection device;

the cartridge forms a liquid reservoir, and one end of the cartridgeincludes an end wall and a second operation portion extending axiallyoutwards from the end wall;

the end wall forms at least one liquid injection opening, the secondoperation portion corresponds to the control switch such that thecontrol switch can be pressed by the second operation portion;

the liquid injection device is arranged on the end of the cartridgecorresponding to the end wall for being pressed by the e-liquid bottle,the liquid injection device forms a liquid injection channelcorresponding to the liquid outlet and the liquid injection openingrespectively, and a first liquid inlet is formed in the liquid injectionchannel;

When the liquid injection device is pressed inwards by the e-liquidbottle, the liquid injection channel moves inwards to communicate theliquid injection opening with the liquid reservoir, and the secondoperation portion presses the control switch to communicate the liquidoutlet with the liquid injection channel; when the e-liquid bottle isremoved, the liquid injection channel restores to its original positionto block the first liquid inlet from the liquid reservoir.

In an embodiment, the liquid injection device includes an abuttingmember for being pressed inwards by the e-liquid bottle and a liquidinjection tube arranged on the abutting member; and the abutting memberdefines an insertion hole, the liquid injection tube is inserted in theinsertion hole, and the liquid injection tube forms the liquid injectionchannel.

In an embodiment, the liquid injection tube extends into the liquidinjection opening, an outer wall of the liquid injection tube engageswith the liquid injection opening tightly, and a blocker is arranged inan inner hole of the liquid injection tube to block the liquid reservoirfrom the first liquid inlet.

In an embodiment, a sealing ring is arranged between an outer wall of aninner end of the liquid injection tube and the liquid injection opening.

In an embodiment, the abutting member is spaced from the end wall and ismovable forwards and backwards to get closed to or away from the endwall.

In an embodiment, the liquid injection device further includes a secondrestoring member providing a force to keep the abutting member away fromthe end wall and to keep the first liquid inlet out of the end wall.

In an embodiment, the liquid injection tube is shaped as a stepped tubeincluding a first section and a second section, a diameter of the firstsection is greater than that of the second section, the first section isinserted into the abutting member, and the second section is insertedinto the liquid injection opening; a step is formed on an outer wall ofthe first section at the connection between the first section and thesecond section to restrict a movement of the liquid injection tubeinside the liquid injection opening; and an inner hole of the secondsection is smaller than that of the first section.

In an embodiment, the second operation portion is shaped as a tubelocated on an axis of the cartridge; and the abutting member is annularand is axially movably sleeved on the second operation portion.

In an embodiment, a tubular sleeving portion is arranged on an outercircle of the end wall, and the sleeving portion extends away from theliquid reservoir; a connection portion is arranged on an inner circle ofone end of the sleeving portion away from the end wall, and the abuttingmember abuts an inner side of the connection portion.

In an embodiment, an inner circle of the connection portion isconfigured with threads engageable with the mouthpiece.

In an embodiment, the electronic cigarette includes two of the liquidinjection openings with center symmetry, and the abutting member formstwo of the liquid injection channels corresponding to the two liquidinjection openings respectively.

When e-liquid is injected to the electronic cigarette from the e-liquidbottle, the e-liquid bottle presses the liquid injection device to openthe liquid injection opening, the second operation portion presses thecontrol switch to open the liquid outlet, thus, the e-liquid bottlecommunicates with the liquid reservoir and e-liquid is injected into theliquid reservoir; after the e-liquid bottle is removed from theelectronic cigarette, the liquid injection opening and the liquid outletare closed, thus, e-liquid can be prevented from flowing out of theelectronic cigarette to ensure the safety of the liquid injectionoperation.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure will be described in more detail with referenceto the accompany drawings and the embodiments, wherein in the drawings:

FIG. 1 is a perspective view of an e-liquid bottle in accordance with anembodiment of the present disclosure;

FIG. 2 is a cross-sectional view of the e-liquid bottle of FIG. 1 inaccordance with an embodiment of the present disclosure;

FIG. 3 is an exploded view of the e-liquid bottle of FIG. 1 inaccordance with an embodiment of the present disclosure;

FIG. 4 is a perspective view of an atomizer of an electronic cigarettein accordance with an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of the atomizer of FIG. 4 in accordancewith an embodiment of the present disclosure;

FIG. 6 is a cross-sectional view of the atomizer of FIG. 4 viewed fromanother angle with a mouthpiece and a smoke tube detached therefrom inaccordance with an embodiment of the present disclosure;

FIG. 7 is an exploded view of a liquid injection device and a cartridgeof FIG. 6 in accordance with an embodiment of the present disclosure;

FIG. 8 is a cross-sectional view showing the engagement between thee-liquid bottle of FIG. 1 and the atomizer of FIG. 6 before the e-liquidis injected to the atomizer in accordance with an embodiment of thepresent disclosure;

FIG. 9 is a cross-sectional view showing the state that the e-liquidbottle of FIG. 8 is pressed inwards to inject the e-liquid in accordancewith an embodiment of the present disclosure;

FIG. 10 is a lateral cross-sectional view of the atomizer of FIG. 4taken from an atomization assembly in accordance with an embodiment ofthe present disclosure;

FIG. 11 is a cross-sectional view of the atomization assembly of FIG. 5in accordance with an embodiment of the present disclosure;

FIG. 12 is an exploded view of the atomization assembly of FIG. 5 inaccordance with an embodiment of the present disclosure; and

FIG. 13 is a schematic view of the atomization assembly in accordancewith an embodiment of the present disclosure in which a heating elementis a heating wire of FIG. 5 .

PREFERRED EMBODIMENTS

For clearly understanding technical features, purpose, and effect of thepresent disclosure, embodiments are given in detail hereinafter withreference to the accompanying drawings.

Referring to FIGS. 1 to 3 , an e-liquid bottle 1 in accordance with anembodiment includes a main body 11, a cover 12, a liquid-out tube 13,and a control switch 14. A liquid outlet 121 is formed in the cover 12,positioned separately from the switch 14; and the liquid-out tube 13 isinserted in the liquid outlet 121 and extends outwards from the liquidoutlet 121, thereby facilitating liquid injection to the electroniccigarette. It is understood that the e-liquid bottle 1 can include oneor more liquid-out tubes 13, and in some embodiments, the liquid-outtube 13 can be integrated with the cover 12. The cover 12 forms a firstoperation portion for abutting a liquid injection device 23 of theelectronic cigarette such that e-liquid can be injected to theelectronic cigarette. During the injection of e-liquid, the cover 12abuts the liquid injection device 23 to open a liquid injection opening2231, thus, e-liquid can be injected to the electronic cigarette throughthe liquid-out tube 13. In other embodiments, the first operationportion can be the main body 11 itself or other fixing components.

The control switch 14 is arranged on the cover 12 for controllingopening and closing of the liquid outlet 121. When the control switch 14is pressed inwards, the liquid outlet 121 is opened, thus e-liquid canbe injected into the electronic cigarette; when the control switch 14 isreleased, the liquid outlet 121 is closed and thus the liquid injectionis stopped.

In some embodiments, the control switch 14 includes a button switch 141,a supporting member 142, a liquid stopper 143, and a first restoringmember 144. The button switch 141 is movably arranged on the cover 12,and the supporting member 142 is connected to an inner side of thebutton switch 141. In some embodiments, the supporting member 142 can beintegrated with the button switch 141. The supporting member 142includes a supporting board 1421 for holding the liquid stopper 143. Thesupporting board 1421 is annular and defines a fixing hole for receivingthe liquid stopper 143.

In some embodiments, the liquid stopper 143 can be a gasket located atan inner side of the cover 12. The gasket is also annular, correspondingto the supporting board 1421.

A fixing column is arranged on the gasket and is inserted into thefixing hole defined in the supporting board 1421. The liquid stopper 143is connected to the button switch 141 for sealing an inner end of theliquid outlet 121. The first restoring member 144 provides a force tothe button switch 141 and the liquid stopper 143, thus the button switch141 can restore to its original position and the liquid stopper 143 canseal the liquid outlet 121.

In some embodiments, the control switch 14 can be integrally formed andcan be deformed inwards when being pressed to open the liquid outlet121. In other embodiments, the control switch 14 can be an inductiveswitch capable of opening the liquid outlet 121 when being pressed.

As shown in FIGS. 4 and 5 , the electronic cigarette engageable with thee-liquid bottle includes an atomizer 2 and a power supply. The atomizer2 includes a cartridge 21, a connection member 22, the liquid injectiondevice 23, a mouthpiece 24, an air tube 25, a smoke tube 26, anatomization assembly 27, and a base 28.

As shown in FIGS. 6 and 7 , the connection member 22 and the base 28 arerespectively arranged on opposite ends of the cartridge 21. Theatomization assembly 27 is mounted on the base 28. The air tube 25penetrates through the cartridge 21, with two ends thereof respectivelyengaging with the atomization assembly 27 and the connection member 22.A liquid reservoir A is formed between the cartridge 21 and the air tube25.

In some embodiments, the connection member 22 includes an annular plate,an outer tube 221 formed on an outer ring of the annular plate, and aninner tube formed on an inner ring of the annular plate. The annularplate forms an end wall 223 covering on end of the liquid reservoir A.Two liquid injection openings 2231 are formed in the annular plate andthus e-liquid can be injected into the liquid reservoir A. The liquidinjection openings 2231 correspond to the liquid outlet 121 formed inthe e-liquid bottle 1. In some embodiments, the two liquid injectionopenings 2231 are symmetrical about a center of the annular plate. Inother embodiments, on the basis that the liquid injection opening 2231can match the e-liquid bottle 1 to allow for liquid injection, thenumber of the liquid injection opening 2231 can be one or more than two.

The outer tube 221 includes a sleeving portion extending away from theliquid reservoir A. A connection portion 224 is arranged on an innercircle of one end of the sleeving portion away from the end wall 223. Aninner circle of the connection portion 224 is configured with threadsengageable with the mouthpiece 24. A first air inlet 2211 is formed inthe sleeving portion such that air can enter the air tube 25 through thefirst air inlet 2211. In other embodiments, the first air inlet 2211 canbe formed in the mouthpiece 24.

The smoke tube 26 is arranged inside the air tube 25 with one endthereof communicating with the air outlet 241 of the mouthpiece 24 andthe other end thereof engaging with the atomization assembly 27. Inassembly, the smoke tube 26 is at first connected to the mouthpiece 24and then inserted into the air tube 25, and the mouthpiece 24 engageswith the threads formed in the inner side of the connection portion 224.In disassembly, after the mouthpiece 24 is detached, the smoke tube 26can be removed, thus, the disassembly of the smoke tube 26 is simple.

The inner tube protrudes outwards axially from the end wall 223 to forma second operation portion 222 for pressing the button switch 141 of thee-liquid bottle 1. The liquid injection openings 2231 are positionedseparately from the second operation portion 222. The second operationportion 222 is located on an axis of the cartridge 21 for facilitatingthe positioning of the liquid injection device 23. The second operationportion 222 corresponds to the button switch 141 of the e-liquid bottle1 for pressing the button switch 141. The second operation portion 222can engage with the connection member 22 normally during the rotation ofthe e-liquid bottle 1. The smoke tube 26 is formed inside the air tube25 and the inner tube with two ends thereof respectively engaging withthe mouthpiece 24 and the atomization assembly 27. The smoke tube 26 isspaced from the inner tube for facilitating air to enter the air tube25.

In some embodiments, on the basis that the second operation portion 222can press the button switch 141, the second operation portion 222 can bea column or vertical wall extending outwards axially from the end wall223, etc. In other embodiments, the connection member 22 can include theend wall 223 and the second operation portion 222, or the end wall 223and the second operation portion 222 can be integrated with thecartridge 21.

Referring to FIGS. 6 to 9 , the liquid injection device 23 is arrangedon the end wall 223 such that the liquid injection device 23 can bepressed by the cover 12. The liquid injection device 23 includes anabutting member 231 for being pressed inwards by the cover 12, twoliquid injection tubes 232 arranged on the abutting member 231, and asecond restoring member 233 for keeping the abutting member 231 awayfrom the end wall 223. The abutting member 231 is spaced from the endwall 223 and is capable of moving forwards and backwards relative to theend wall 223. In some embodiments, the abutting member 231 is annularand is sleeved on the inner tube. The abutting member 231 abuts an innerend of the connection member 224 to prevent the abutting member 231 fromgetting away from the sleeving portion.

The abutting member 231 defines two insertion holes. The two liquidinjection tubes 232 are respectively inserted into the two insertionholes to form two liquid injection channels. The liquid injection tubesextend into the liquid injection openings 2231 respectively. With thetwo liquid injection tubes 232, the abutting member 231 and the liquidinjection tubes 232 bear balanced forces when moving towards the liquidreservoir A, thereby avoiding jamming of the abutting member 231 and theliquid injection tubes 232. In other embodiments, the electroniccigarette can include only one liquid injection tube 232 arranged in theabutting member 231 and corresponding to the liquid-out tube 13.

A first liquid inlet 2321 is formed in each of the liquid injectiontubes 232. In some embodiments, an outer wall of the liquid injectiontube 232 tightly engages with the corresponding liquid injection opening2231 to prevent leakage of e-liquid from the outer wall of the liquidinjection tube 232. A blocker 2322 is arranged in an inner hole of theliquid injection tube 232 to block the liquid reservoir A from the firstliquid inlet 2321; before e-liquid is injected into the liquid reservoirA, the blocker 2322 prevents leakage of e-liquid from the first liquidinlet 2321. In some embodiments, a sealing ring 234 is arranged betweenan outer wall of an inner end of the liquid injection tube 232 and theliquid injection opening 2231 to seal the liquid injection opening 2231and thus avoid the leakage of e-liquid. In other embodiments, the liquidinjection tube 232 can be made of flexible material such that thesealing effect between the liquid injection tube 232 and the liquidinjection opening 2231 can be improved due to the property of theflexible material.

In some embodiments, the liquid injection tube 232 is a stepped tubeincluding a first section and a second section. A diameter of the firstsection is greater than that of the second section. The first section isinserted into the abutting member 231 and the second section is insertedinto the liquid injection opening 2231. A slot is formed in an outerring of the second section in which the sealing ring 234 is mounted,thereby preventing the sealing ring 234 from dropping off. A step isformed on an outer wall of the first section at the connection betweenthe first section and that of the second section, thereby restrictingthe movement of the liquid injection tube 232 inside the liquidinjection opening 2231. An inner hole of the first section correspondsto the liquid-out tube 13, such that the liquid-out tube 13 can beinserted into the inner hole of the first section to avoid the leakageof e-liquid. An inner hole of the second section is smaller than that ofthe first section to form the step which restricts an insertion depth ofthe liquid-out tube 13 into the liquid injection tube 232. In otherembodiments, protrusions may be arranged on an outer wall and an innerwall of the liquid injection tube 232 to respectively restrict theinsertion depth of the liquid injection tube 232 into the liquidinjection opening 2231 and the liquid injection opening 232.

The second restoring member 233 is located between the abutting member231 and the end wall 223 for providing a force which is capable ofkeeping the abutting member 231 away from the end wall 223 and thuskeeping the first liquid inlet 2321 out of the end wall 223. In someembodiments, the second restoring member 233 may be a spring or anelastic piece located between the end wall 223 and the abutting member231.

When the liquid injection device 23 is pressed inwards by the cover 12,the liquid injection tube 232 moves inwards to communicate the liquidinjection opening 2231 with the liquid reservoir A; meanwhile, thesecond operation portion 222 presses the button switch 141 tocommunicate the liquid outlet 121 with the liquid injection channel,thus the e-liquid can be injected into the liquid reservoir A from thee-liquid bottle 1. When the e-liquid bottle 1 is removed, the liquidinjection channel restores outwards to its original position, therebyblocking the first liquid inlet 2321 from the liquid reservoir A. Insome embodiments, the liquid injection tube 232 can be integrated withthe abutting member 231, thus, when the cover 12 presses the abuttingmember 231, the liquid injection tube 232 moves correspondingly.

In some embodiments, the liquid injection opening 2231 may be configuredwith an elastic sealing member and the liquid injection tube 232 may belocated out of the liquid injection opening 2231; when the abuttingmember 231 is pressed by the liquid injection tube 232, the liquidinjection tube 232 pushes the elastic sealing member off to open theliquid injection opening, thereby communicating the liquid injectionopening 2231 with the liquid reservoir A; when the e-liquid bottle 1 isremoved, the abutting member 231 and the liquid injection tube 232restores outwards to their original positions, thus, the elastic sealingmember automatically closes the liquid injection opening 2231.

In some embodiments, the second restoring member 233 may be omitted, theabutting member 231 may be a compressed spring or elastic piece, and theliquid injection tube 232 is arranged on the abutting member 231; whenthe abutting member 231 is compressed by the cover 12, the liquidinjection tube 232 moves inwards to communicate the liquid injectionopening 2231 with the liquid reservoir A; when the e-liquid bottle 1 isremoved, the abutting member 231 restores to its original shape to drivethe liquid injection tube 232 to move outwards, thereby blocking thefirst liquid inlet 2321 from the liquid reservoir A.

Referring to FIGS. 5 and 10 , in some embodiments, the first air inlet2211 formed in the outer tube 221 of the connection member 22communicates with the inner tube and the air tube 25. The air tube 25forms an air-in channel such that air can flow to the atomizationassembly 27. The smoke tube 26 forms an air-out channel. The atomizationassembly 27 is located at the connection between the air-in channel andthe air-out channel, and thus atomized smoke from the atomizationassembly 27 can flow into the mouthpiece 24 with airflows inside theair-in channel and the air-out channel Since the air tube 25 is sleevedon the smoke tube 26, cool air inside the air tube 25 can cool heatedsmoke inside the smoke tube 26, allowing a user to have a comfortablesmoke inhalation. In other embodiments, the air-out channel also can belocated outside the air-in channel or adjacent to the air-in channel. Insome embodiments which cooling of smoke is not required, the air-inchannel and the air-out channel can be arranged in other ways.

As shown in FIGS. 10 to 12 , the atomization assembly 27 defines anair-in space B communicating with the air-in channel and an air-outspace C communicating with the air-out channel. The air-in space Bcommunicates with the air-out space C. The atomization assembly 27includes a heating assembly 271 arranged in the air-out space C forheating the e-liquid. After the e-liquid is atomized, the smoke flowsinto the mouthpiece 24 along the air-out channel with airflows.

In some embodiments, the air-in space B surrounds the air-out space C,which reduces the temperature of the atomization assembly 27 such thatthe heat of the atomization assembly 27 may not be conducted to thee-liquid in the liquid reservoir A. In other embodiments, the air-outspace C may surround the air-in space B to expand the air-out space andthus facilitate heat radiation.

In some embodiments, the atomization assembly 27 includes an outer tubebody 272, a dividing tube 273, an inner tube body 274, and a firstliquid absorbing member 275. The dividing tube 273 is sleeved on theinner tube body 274, and the outer tube body 272 is sleeved on thedividing tube 273. The air-in space B is defined between the outer tubebody 272 and the inner tube body 274, and the air-out space C is definedin the inner tube body 274.

One end of the outer tube body 272 communicates with the air-in channel,and one end of the inner tube body 274 communicates with the air-outchannel. The dividing tube 273 forms a second air inlet 2731 whichcommunicates with the air-in space B, and an outer wall of the innertube body 274 forms a third air inlet 2741 which communicates the secondair inlet 2731 with the air-out space C. Thus, the air-in space B, thesecond air inlet 2731, the third air inlet 2741, and the air-out space Ccommunicate with each other to allow for air circulation.

In order to ensure the air circulation from the air-in space B to thesecond air inlet 2731, two recessed portions 2721 are formed in an innerwall of the outer tube body 272 along a circumferential direction of theouter tube body 272. The recessed portions 2721 communicate with theair-in channel to form an airflow channel between the outer tube body272 and the dividing tube 273. Correspondingly, the dividing tube 273forms two second air inlets 2731 corresponding to the two recessedportions 2721 respectively. In other embodiments, the number of therecessed portion 2721 may be one or more than two, and the recessedportion 2721 may be formed in an outer wall of the dividing tube 273,or, formed in both the inner wall of the outer tube body 272 and theouter wall of the dividing tube 273.

The second air inlet 2731 misaligns with the corresponding recessedportion 2721 circumferentially, which increases the path of the airflowsand improves the heat radiation effect. In some embodiments, the thirdair inlet 2741 is formed in one end of the inner tube body 274corresponding to the air-out channel, thus, the atomized smoke from theheating assembly 271 can enter the air-out channel through the third airinlet 2741. The second air inlet 2731 corresponds to the third air inlet2741 axially.

A first airflow slot 2722 is formed between the outer tube body 272 andthe dividing tube 273. The first airflow slot 2722 communicates theair-in space B with the second air inlet 2731. The second air inlet 2731misaligns with the third air inlet 2741 circumferentially. A secondairflow slot 2742 is formed between the inner tube body 274 and thedividing tube 273 for communicating with the second air inlet 2731 withthe third air inlet 2741. The first airflow slot 2722 and the secondairflow slot 2742 are arranged circumferentially such that air cancirculate inside the atomization assembly 27. With the air circulation,the air can cool the atomization assembly 27 fully before entering theinner tube body 274.

In some embodiments, the outer tube body 272 forms a second liquid inlet2723, the dividing tube 273 forms a third liquid inlet 2732, and theinner tube body 274 forms a fourth liquid inlet 2743. The second liquidinlet 2723 communicates with the third liquid inlet 2732, and the thirdliquid inlet 2732 communicates with the fourth liquid inlet 2743. Thefirst liquid absorbing member 275 is arranged between the dividing tube273 and the outer tube body 272 such that the e-liquid in the liquidreservoir A can flow into the heating assembly 271 through the secondliquid inlet 2723, the third liquid inlet 2732 and the fourth liquidinlet 2743 to be heated and atomized.

The atomization assembly 27 further includes a sealing cover 276penetrating through the second liquid inlet 2723 and the third liquidinlet 2732, which prevents the leakage of e-liquid from a gap betweenthe outer tube body 272 and the diving tube 273. The recessed portion2721 misaligns with the second liquid inlet 2723 circumferentially,thus, the second liquid inlet 2723 can be sealed from the third liquidinlet 2732 of the dividing tube 273.

In other embodiments, the dividing tube 273 and the first liquidabsorbing member 275 can be omitted, and the outer tube body 272 isspaced from the inner tube body 274 to define the air-in space B. A tubeor a liquid guider can be arranged between the second liquid inlet 2723and the fourth liquid inlet 2743 for guiding the e-liquid to the heatingassembly 271. The air-in space B can fully reduce the temperature of theouter wall of the inner tube body 274, thereby reducing the heatconducted to the liquid reservoir A.

In some embodiments, the heating assembly 271 includes a second liquidabsorbing member 2711 and a heating element 2712. The second liquidabsorbing member 2711 absorbs the e-liquid entering the fourth liquidinlet 2743 such that the e-liquid can be heated and atomized by theheating element 2712. The atomized smoke flows into the air-out channelwith airflows. The heating element 2712 may be a ceramic heating element2713. As shown in FIG. 13 , the heating element 2712 also can be aheating wire. In other embodiments, the heating assembly 271 can onlyinclude the ceramic heating element 2713, and the e-liquid entering thefourth liquid inlet 2743 is absorbed by the ceramic heating element 2713and then is heated and atomized by the ceramic heating element 2713.

In some embodiments, a plugging member 277 is arranged in one end of theinner tube body 274 corresponding to the smoke tube 26, thus, air isonly allowed to enter the air-out space C through the air inlet space Bto ensure the cooling effect of the atomization assembly 27.

The contents described above are only preferred embodiments of thepresent disclosure, but the scope of the present disclosure is notlimited to the embodiments. Any ordinarily skilled in the art would makeany modifications or replacements to the embodiments in the scope of thepresent disclosure, and these modifications or replacements should beincluded in the scope of the present disclosure. Thus, the scope of thepresent disclosure should be subjected to the claims.

What is claimed is:
 1. An atomizer, comprising a cartridge (21) and aliquid injection device (23); wherein, a liquid reservoir (A) is definedin the cartridge (21), and the cartridge (21) comprises an end wall(223) which defines at least one liquid injection opening (2231); theliquid injection device (23) is arranged on the end of the cartridge(21) corresponding to the end wall (223), the liquid injection device(23) defines at least one liquid injection channel extending in the atleast one liquid injection opening (2231), and a first liquid inlet(2321) is defined in the liquid injection channel; and when the liquidinjection device (23) is pressed inwards, the liquid injection channelmoves inwards to communicate the first liquid inlet (2321) with theliquid reservoir (A); when the liquid injection device (23) is released,the liquid injection channel restores to its original position to blockthe first liquid inlet (2321) from the liquid reservoir (A).
 2. Theatomizer of claim 1, wherein the liquid injection device (23) comprisesa liquid injection tube (232) extending in the liquid injection opening(2231), and the liquid injection tube (232) defines the liquid injectionchannel.
 3. The atomizer of claim 2, wherein the first liquid inlet(2321) is defined in a side wall of the liquid injection tube (232). 4.The atomizer of claim 2, wherein an outer wall of the liquid injectiontube (232) engages with the liquid injection opening (2231) tightly. 5.The atomizer of claim 2, wherein a blocker (2322) is arranged at aninner end of the liquid injection tube (232) to block the liquidreservoir (A) from the first liquid inlet (2321).
 6. The atomizer ofclaim 2, wherein an inner end of the liquid injection tube (232) isenclosed.
 7. The atomizer of claim 2, wherein a sealing ring (234) isarranged between an outer wall of an inner end of the liquid injectiontube (232) and the liquid injection opening (2231).
 8. The atomizer ofclaim 2, wherein the liquid injection device (23) further comprises asecond restoring member (233) providing a force for the liquid injectiontube (232) to move outwards to its original position.
 9. The atomizer ofclaim 8, wherein the second restoring member (233) is sleeved outsidethe liquid injection tube (232).
 10. An electronic cigarette, comprisinga cartridge (21) and a liquid injection device (23); wherein, a liquidreservoir (A) is defined in the cartridge (21), and one end of thecartridge (21) comprises an end wall (223) which defines at least oneliquid injection opening (2231); the liquid injection device (23) isarranged on the end of the cartridge (21) corresponding to the end wall(223), the liquid injection device (23) defines at least one liquidinjection channel extending in the at least one liquid injection opening(2231), and a first liquid inlet (2321) is defined in the liquidinjection channel; and when the liquid injection device (23) is pressedinwards, the liquid injection channel moves inwards to communicate thefirst liquid inlet (2321) with the liquid reservoir (A); when the liquidinjection device (23) is released, the liquid injection channel restoresto its original position to block the first liquid inlet (2321) from theliquid reservoir (A).
 11. The electronic cigarette of claim 10, whereinthe liquid injection device (23) comprises a liquid injection tube (232)extending in the liquid injection opening (2231), and the liquidinjection tube (232) defines the liquid injection channel.
 12. Theelectronic cigarette of claim 11, wherein the first liquid inlet (2321)is defined in a side wall of the liquid injection tube (232).
 13. Theelectronic cigarette of claim 11, wherein an outer wall of the liquidinjection tube (232) engages with the liquid injection opening (2231)tightly.
 14. The electronic cigarette of claim 11, wherein a blocker(2322) is arranged at an inner end of the liquid injection tube (232) toblock the liquid reservoir (A) from the first liquid inlet (2321). 15.The electronic cigarette of claim 11, wherein an inner end of the liquidinjection tube (232) is enclosed.
 16. The electronic cigarette of claim11, wherein a sealing ring (234) is arranged between an outer wall of aninner end of the liquid injection tube (232) and the liquid injectionopening (2231).
 17. The electronic cigarette of claim 11, wherein theliquid injection device (23) further comprises a second restoring member(233) providing a force for the liquid injection tube (232) to moveoutwards to its original position.
 18. The electronic cigarette of claim17, wherein the second restoring member (233) is sleeved outside theliquid injection tube (232).